Space Telescope Science Institute - This institute, located at Johns Hopkins University, is the home of the HST Scientists. The STScI is responsible for allocating observing time and for calibration, data storage, retrieval, and distribution of science data. STScI also provides software tools for manipulating the data.

Space Telescope Science Institute, Baltimore, MD. Large research facility to support the Hubble Space Telescope.

Space Telescope Science Institute. Responsible for Hubble Space Telescope science operations. Operated by Association of Universities for Research in Astronomy, Inc. (AURA) under contract from NASA.